Finding the Fourth Proportional to 3,879.75, 5,819.76 and 1,282.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,879.75 : 5,819.76 = 1,282.89 : x
2. Step 2: Convert to fraction form
   3,879.75/5,819.76 = 1,282.89/x
3. Step 3: Cross multiply
   3,879.75x = 5,819.76 × 1,282.89
4. Step 4: Simplify right side
   3,879.75x = 7,466,111.91
5. Step 5: Solve for x
   x = 7,466,111.91/3,879.75
6. Step 6: Final answer
   x = 1,924.38